Poor economic conditions in the early 1920s contributed to anti-immigrant sentiment and a. christian fundamentalism b. oil technology advancements c. lower crime rates d. increased racial tensions

D. increased racial tensions

Explanation:

There is a correlation between economic situation and internal conflicts in all countries. When the economic situation is good and there is employment for everyone, people tend to be more tolerant. When the situation gets worse, people in one country feel angry and blame immigrants for "stealing" their jobs.

In the early twentieth century racism was deeply rooted in society. There were still people with slave thinking and a race differentiation regime - which is not rational. Thus, in situations of economic aggravation, racial tensions worsened along with xenophobia.

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